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1March 10, 2009
Electrical Interconnection Approval of NON-HONI Biogas
Projects
Prepared By:
Martin Lensink, P. Eng.Principal-In-Charge
CEM Engineering26 Hiscott Street, Suite 201
St. Catharines, Ontario, L2R 1C6
2March 10, 2009
Table of Contents
1. Introductions
2. Description of Proponents Operations
3. Description of Electrical Supply
4. Description of Biogas Projects
5. LDC’s and LDC Approval
6. Conclusions
3March 10, 2009
Introduction – CEM Engineering
• Engineer consulting firm (9+ people).
• Specialize in “thermal power”.
• Committed to helping energy intensive customers manage energy use & reduce energy cost, through proper application of high efficiency energy conversion technology.
• Established in early 2001.
• Lead by Martin Lensink:– 28+ years in cogen/energy sector
4March 10, 2009
Introduction – Martin Lensink
• McMaster University, Mech. Eng. & Mgmt, 1980
• Five (5) Energy Firms Between 1982 and present
– Union Gas Ltd. (cogeneration via natural gas)– SNC Lavalin (cogeneration engineering)– U.S. Turbine Corp. (cogeneration major equipment)– Toromont Energy Ltd. (sale of cogenerated energy)– CEM Engineering (thermal power engineering)
5March 10, 2009
Description of Proponents Operation
Bayview Flowers Ltd.
– Jordan Station
– www.bayviewflowers.com
– Established 1971
– 340,000 ft2
– Potted plants & bedding plants
– High quality cut flower arrangements
– Hot water heating system
6March 10, 2009
Description of Proponents Operation
Vandermeer Greenhouses Ltd.
– Niagara-On-The-Lake
– www.vandermeergreenhouses.ca
– Established 1976
– 280,000 ft2
– Specialists in spray chrysanthemums
– Hot water heating system
7March 10, 2009
Description of Proponents Operation
Morningside Greenhouses Ltd.
– Beamsville
– Established 1992
– 100,000 ft2
– Cut lilies (year round)
– Heating system is steam/hot water hybrid
8March 10, 2009
Description of Electrical Supply
Bayview Flowers Ltd.
– Supplied at 27.6 kV (3 phase).
– 1,000 kVA transformer (wye-wye).
– 600 V distribution bus (2,000 A; 50 kA).
– Secondary metered.
– 180 kW emergency genset.
9March 10, 2009
Description of Electrical Supply
Vandermeer Greenhouses Ltd.
– Supplied at 27.6 kV (3 phase).
– 1,000 kVA transformer (wye-wye).
– Secondary metered.
– 600 V distribution bus (1,200 A; 18 kA).
– Distribution bus being upgraded to 50 kA.
– 200 kW emergency genset.
10March 10, 2009
Description of Electrical Supply
Morningside Greenhouses Ltd.
– Supplied at 4.8 kV (single phase).
– 167 kVA transformer.
– Secondary metered.
– Two (2) emergency gensets (190 kW; 122 kW).
– Loads served off two (2) buses.
11March 10, 2009
Description of Biogas Project
Bayview Flowers Ltd.
– 1,200 m3 Primary Digester.
– 1,200 m3 Secondary Digester and storage of both biogas & digestate.
– 15 m3 dry feeder (TMR type).
– Biogas Cogeneration System (250 kWe and 250 kWt).
– Retrofit an existing boiler to burn biogas (with biogas blower).
12March 10, 2009
Description of Biogas Project
Bayview Flowers Ltd.
13March 10, 2009
Description of Biogas Project
Vandermeer Greenhouses Ltd.
– 1,526 m3 Primary Digester.
– 1,526 m3 Secondary Digester.
– 3,184 m3 digestate storage.
– 30 m3 Dry Feeder.
– Biogas Cogeneration System (335 kWe and 400 kWt).
– 40 m3 buried tank (for liquid input).
– Digestate separator.
– Remote monitoring & control via Internet.
14March 10, 2009
Description of Biogas Project
Morningside Greenhouses Ltd.
– 1,526 m3 Primary Digester.
– 1,780 m3 Secondary Digester and storage of both biogas & digestate.
– 15 m3 dry feeder (TMR type).
– Biogas Cogeneration System (1900 kWe and 320 kWt).
– Remote monitoring & control via Internet.
15March 10, 2009
LDC and LDC ApprovalBayview Flowers Ltd.
– LDC was Peninsula West Utilities Ltd. at the time.
– LDC is now Niagara Peninsula Energy Inc.
– Application was based on 1 MWe (ultimate).
– Request to connect submitted August, 2006.
– Need for CIA waived December, 2006.
– 1 MWe much less than 50% of historic minimum feeder load.
– No remote trip needed.
– Metering configuration changed for two (2) meters (Series Metered).
16March 10, 2009
LDC and LDC Approval
1,000.00 500.00
0.00 0.00
500.00
M1 M2~
Load
Delivered Delivered
Consumed Consumed
Consumed
Bayview Flowers Ltd.
Metering Configuration – Series Metered, Secondary Metered
17March 10, 2009
LDC and LDC Approval
Vandermeer Greenhouses Ltd.
– LDC is NOTL Hydro.
– CIA application submitted October, 2007.
– CIA based on 750 kWe.
– NOTL Hydro retained AESI to do CIA.
– CIA report completed on January, 2008.
– No modification required.
18March 10, 2009
LDC and LDC Approval
Morningside Greenhouses Ltd.
– LDC is Grimsby Power.
– CIA application submitted January, 2008.
– Grimsby Power retained Dromey Design Inc. (Ian Dromey) to complete CIA.
– CIA report received May, 2008.
– No remote trip required.
19March 10, 2009
Conclusions
• Two (2) CIA’s took 3-4 months to process
• In one case, CIA was not needed at all.
• Another LDC recently waived need for CIA for a 250 kWe system on a 27.6 kV 3 phase feeder in Southwestern Ontario.
• Each LDC liked our proposed protection and control system (based on SEL-451).
• In each case, we had/have to demonstrate that we are off-line in <160 ms (in event of abnormal conditions on LDC feeder).
